Premium Bed Bug/allergy Relief Waterproof Mattress Cover Terry Cotton-twin Size cotton EMBED Mattress Encasement - Twin Size Size : 38"x75"x9" - fits up to 11" deep Mattress Target Pest: Bed bugs, Dust Mites and Allergens Material: Top: 80% cotton and 20% polyester, Knitting Fabric: 100% polyester, Laminate: 100% polyurethane Embed is mattress encasement. It is design to give you the best comfort, with terry fabric lining on top and laminated inside with the best technology. This will not only give you the best comfort and protection, it is water resist and bed bug, dust mite and allergen proof.